1201020112 has 40 divisors (see below), whose sum is σ = 2359168200. Its totient is φ = 592238592.

The previous prime is 1201020101. The next prime is 1201020127. The reversal of 1201020112 is 2110201021.

It can be written as a sum of positive squares in 4 ways, for example, as 106998336 + 1094021776 = 10344^2 + 33076^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723988 + ... + 725644.

It is an arithmetic number, because the mean of its divisors is an integer number (58979205).

Almost surely, 2^1201020112 is an apocalyptic number.

It is an amenable number.

1201020112 is a deficient number, since it is larger than the sum of its proper divisors (1158148088).

1201020112 is a wasteful number, since it uses less digits than its factorization.

1201020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263 (or 2257 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1201020112 is about 34655.7370719481. The cubic root of 1201020112 is about 1062.9596035514.

Adding to 1201020112 its reverse (2110201021), we get a palindrome (3311221133).

The spelling of 1201020112 in words is "one billion, two hundred one million, twenty thousand, one hundred twelve".